I am running WP as a CMS at the moment and I've been looking for a decent search engine plugin to index the site. The requirements are: Facet posts based on custom taxonomies (aka, be able to drill down based on taxonomies assigned to posts) Fast Does not display the actual post but rather an excerpt Nice to haves: - Display most recent comment date, author I have come across the Apache SOLR plugin and it does a decent job except for faceting by custom taxonomy. It facets by Categories, Tags, and Author but the Categories is so convoluted that I might as well rethink how I apply categories to the posts. Does anyone have any experience with this? Thanks!